Title :
Evaluation of converter topologies for improved power quality in DC traction substations
Author :
Horn, A. ; Wilkinson, R.H. ; Enslin, T.H.R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
Abstract :
A high power converter is developed for improved power quality in DC traction substation applications. The proposed converter can be used as both an inverter and an active power filter (APF). As an inverter, it can recycle regenerative energy caused by decelerating trains and as an APF, it can compensate for harmonic distortion produced by the rectifier substations. This paper evaluates the different topologies which can be used to implement this converter. A multilevel topology for the converter is considered because of the high power and high dynamic bandwidth requirements. A comparison is made between using a multilevel inverter and using a combination of a multilevel chopper and a lower voltage inverter
Keywords :
DC-AC power convertors; active filters; bipolar transistor switches; harmonic distortion; insulated gate bipolar transistors; invertors; power bipolar transistors; power filters; power semiconductor switches; power supply quality; power system harmonics; railways; rectifier substations; substations; traction; DC traction substation; active power filter; applications; dynamic bandwidth; harmonic distortion compensation; inverter; multilevel chopper; multilevel inverter; multilevel topology; power converter topologies; power quality; rectifier substations; regenerative energy recycling; Active filters; Bandwidth; Choppers; Harmonic distortion; Inverters; Power quality; Rectifiers; Recycling; Substations; Topology;
Conference_Titel :
Industrial Electronics, 1996. ISIE '96., Proceedings of the IEEE International Symposium on
Conference_Location :
Warsaw
Print_ISBN :
0-7803-3334-9
DOI :
10.1109/ISIE.1996.551046
